News
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The role of nitrogen and phosphorus in activated sludge and the calculation of addition!
For industrial wastewater with a single component and a lack of nitrogen and phosphorus nutrients, the timely and appropriate addition of nitrogen and phosphorus nutrients is particularly important. Nitrogen, phosphorus and other nutrients are important factors in maintaining the growth and repro...Read more -
Treatment and detection of oil and fat industrial wastewater
Sources and characteristics of oil and fat wastewater Oil and fat wastewater mainly comes from the continuous alkali refining, hydration, acidification, neutralization, degumming, deodorization, decolorization, washing, filtration and other processes in the leaching, physical and chemical refinin...Read more -
Related knowledge and wastewater testing of textile printing and dyeing wastewater
Textile wastewater is mainly wastewater containing natural impurities, fats, starch and other organic substances generated during the process of raw material cooking, rinsing, bleaching, sizing, etc. Printing and dyeing wastewater is generated in multiple processes such as washing, dyeing, print...Read more -
The 24th Lianhua Technology Skills Training Conference ended, focusing on technological innovation and talent training
Recently, the 24th Lianhua Technology Skills Training Conference was successfully held in Yinchuan Company. This training conference not only demonstrated Lianhua Technology’s firm commitment to technological innovation and talent training, but also provided a valuable opportunity for the ...Read more -
Visit the student aid site in Xining, Qinghai, and witness Lianhua Technology’s nine-year journey of public welfare and student aid
At the beginning of the autumn season, another year of “Love and Student Aid Charity” is about to begin. Recently, Lianhua Technology once again visited Xining, Qinghai, and continued its nine-year chapter of public welfare and student aid with practical actions. This is not only a c...Read more -
Industrial wastewater and water quality testing
Industrial wastewater includes production wastewater, production sewage and cooling water. It refers to wastewater and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, by-products and pollutants generated in the pr...Read more -
How to choose solid, liquid, and reagent vials consumables of wastewater testing? Our advice is…
Testing water quality indicators is inseparable from the application of various consumables. Common consumable forms can be divided into three types: solid consumables, liquid consumables, and reagent vials consumables. How do we make the best choice when faced with specific needs? The following ...Read more -
Eutrophication of water bodies: the green crisis of the water world
Eutrophication of water bodies refers to the phenomenon that under the influence of human activities, nutrients such as nitrogen and phosphorus required by organisms enter slow-flowing water bodies such as lakes, rivers, bays, etc. in large quantities, resulting in rapid reproduction of algae an...Read more -
Chemical oxygen demand (COD): an invisible ruler for healthy water quality
In the environment we live in, water quality safety is a vital link. However, the quality of water is not always obvious, and it hides many secrets that we cannot see directly with our naked eyes. Chemical oxygen demand (COD), as a key parameter in water quality analysis, is like an invisible rul...Read more -
Determination of turbidity in water
Water quality: Determination of turbidity (GB 13200-1991)” refers to the international standard ISO 7027-1984 “Water quality – Determination of turbidity”. This standard specifies two methods for determining turbidity in water. The first part is spectrophotometry, which is...Read more -
Methods for rapid detection of suspended solids
Suspended solids, as the name implies, are particulate matter that floats freely in water, usually between 0.1 microns and 100 microns in size. They include but are not limited to silt, clay, algae, microorganisms, high molecular organic matter, etc., forming a complex picture of the underwater m...Read more -
What problems does the COD instrument solve?
The COD instrument solves the problem of quickly and accurately measuring the chemical oxygen demand in water bodies, so as to determine the degree of organic pollution in water bodies. COD (chemical oxygen demand) is an important indicator for measuring the degree of organic pollution in water...Read more
